PHP Simple Statistics Online number of methods _php tips

This article illustrates a simple way to count the number of people online in PHP. Share to everyone for your reference, specific as follows:

<?php
//First of all you have to read and write the permissions of the file//the
program can be directly run, the first error, to fou painting?
$online _log = "Count.dat"; Save the number of files,
$timeout = 30;//30 seconds did not move the author, that the line
$entries = file ($online _log);
$temp = Array ();
For ($i =0 $i <count ($entries); $i + +) {
 $entry = explode (",", Trim ($entries [$i]));
 if ($entry [0]!= getenv (' remote_addr ')) && ($entry [1] > Time ()) {
  Array_push ($temp, $entry [0]. ",". $ ENTRY[1]. " \ n "); Remove the other viewer's information and remove the timeout and save it in $temp
 }
Array_push ($temp, getenv (' remote_addr '). ",". ( Time () + ($timeout)). " \ n "); Update the viewer's time
$users _online = count ($temp);//Count online number
$entries = Implode ("", $temp);
Write file
$fp = fopen ($online _log, "w");
Flock ($FP, LOCK_EX); Flock () cannot work properly in NFS and other network file systems
fputs ($FP, $entries);
Flock ($FP, lock_un);
Fclose ($FP);
echo "currently has". $users _online. " People online ";
? >

How to use:

Save the above code as count.php in the location you want to use:

Include ("count.php");

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I hope this article will help you with the PHP program design.